Troubleshooting – InSinkErator H778 User Manual

Page 9

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9

TROUBLESHOOTING

WHAT TO DO

Water and steam spits
forcefully from spout
without turning on the
dispenser faucet.

Water is not hot

• Unit is boiling.

May be normal during initial setup.

• The unit may not be plugged in.

• The electric outlet is inoperative.

• Depress faucet lever to release some water from

the tank.

• Adjust water temperature using dial on tank front.

Remember that at higher altitudes, water boils
at lower temperatures.

• Make sure the unit is connected to a properly grounded

electric outlet.

• Make sure the circuit breaker or fuses are

functioning properly.

• Check that the outlet is not switched off.

Water is too hot
or not hot enough

• Thermostat is not adjusted to

your needs.

• Adjust the thermostat slowly, then depress or twist faucet handle

for 20 seconds to bring in fresh water to be heated at the new
setting. Allow 5-7 minutes for water to reach new temperature.

Water comes out the
vent instead of spout

• Outlet tube is blocked.

• Check that outlet tube is not kinked, twisted or pinched.

• Unscrew spout end piece and clean out any debris.

Water is dripping from
the spout/vent
intermittently

• The expansion chamber isn’t draining

properly due to low water pressure.

• The spout is blocked.

• Unplug the unit. If the dripping doesn’t stop after a few

minutes, check the supply valve to ensure that is fully
open and there are no obstructions in the water line
reducing the pressure below 30 psi (

i.e., a poorly mounted

saddle valve, a clogged water filter, or a partially opened
shut-off valve).

• Unscrew spout end piece and clean out any debris.

Water is dripping
from the spout/vent
constantly

• Debris in the water line may be

in the faucet valve seat causing a
slow water leak.

• Unscrew spout end piece and clean out any debris.

• Depress or twist lever 7-10 times to flush faucet & lines.

Divided stream

• Debris in the faucet lines.

• Unscrew spout end piece and clean out any debris.

PROBLEM

POSSIBLE CAUSE

If you are still experiencing trouble,

visit www.insinkerator.com or call 1-800-845-8345.

An instant hot water dispenser, like any water heater, has a limited life and will eventually fail. To avoid
possible property damage, this instant hot water dispenser should be regularly examined for leakage and
replaced when necessary. A drain pan, plumbed to an appropriate drain or outfitted with a leak detector,
should be used in those applications where any leakage could cause property damage.

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